johnston



mo Model.) 5 sh eets -sheet 1;

S. L. JOHNS-TON.- COTTON GIN AND WO0L BURRBR.

No. 539,743. Patented May 21,1895.

ES: I/

, I D'mdlifizwfia I 1 BY A TTORNEYS.

m: yearns PETERS o0. Pam-autumn WASNINGTON. o.c.

5 Sheets-Sheet 2.

{No Model.)

S.L.JOHNSTON. COTTON GIN AND WOOL BURREIL.

Patented May 21, 1895.

INVENTOH k ,v liwfiwfin By 2 g A WITNESSES:

ATTORNEYS.

4: mums anus co. wuomuma, \wsumemn a c (No Model.) 5 Sheets-Sheet 3.

SLL. JOHNSTON. COTTON GIN AND WOOL BURRER.

No. 539,743. I Patented May 21, 189 5.

ll 7% ti 1/)? MQI H! i l/ w um ..Iri "u|-"' on Him. m 2.

UH HIHHHWIHW j 1| '2 i;

N mmessqs; INVENTOR' V M. I JmeZIJa'rwfiFz ATTORNEYS.

(N Modem 5 Sheets-Sheet 4.

- S. L. JOHNSTON.

COTTON GIN AND WO0L BURRER. No. 539,743. Patented May 21, 18

A TTORNE YS.

m: uonms PETERS co. PHDTO-LITHQ, WASHINGTON n c UNITED STATES PAT NT DFFICEQ.

SAMUEL L. JOHNSTON, on O TON,fMAss onUsnT'rs, Assreivon, BYME NE ASSIGNMENTS, TOTHE UNIVERSAL COTTON.GIN AND WooL' BURRER COMPANY, on SAME PL'AoE;

coTToN-cmA o wooL- usRER.

SPECIFICATION forming part of masts Patent No. 539,743, dated. Maya-1895.

Application filed JanuaryZO, 1894.? Serial No. 497,524- (No model.)

To all whom it may concern:

Be it known that I, SAMUEL L. JoHNsToN,

- residing at Boston, inthe county of suifolk and State of Massachusetts, have'in ve'nted a new and Improved Cotton-Gin and Wool-Burrer, of which the following is a specification. My invention, which relates to that class of for its object, to provide a machine of this re kind, which is adapted foruse for ginning cotton or burring wool, in an economical, and effective manner without injury to the fiber of the material'while'passing through the machine.

My invention also has for its object to provide a machine, having a reciprocating strip per mechanism, supported, secured, and held to operate, in such a manner as to secure a more effective, rapid, and uniform operation.

Furthermore, my invention has for its obj set, to provide a vibrating receiver and separator mechanism, which receives the material from the hopper and delivers it to the roller and stripper, and also serves to clear the seed and dirt therefrom as it feeds it to such stripping devices.

My invention also comprehends other features which will hereinafter be specifically referred to, and which will serve to increase the 0 capacity of the machine and improve the quality of the cotton or wool treated.

My invention, therefore consists, in the novel combination and peculiar arrangement of parts, such as willbe first described indetail,

3 5 and then pointed out in the appended claims, reference being had to the accompanying drawings, in which Figure 1 is an end elevation of my improved machine, the main drive and band pulley bemg shown in dotted lines. Fig. 2 is a detail view taken from the opposite end of the ma-' chine, illustrating the automatic feed mechanism. Fig. 3 is a top plan view of the complete machine. Fig. 4 is a longitudinal sec- 5 tion of the same, taken on the line44, Fig. 1,

looking in the direction indicated by the arrow. Fig. 5 is a transverse section of the machine, taken on the line 5 5, Fig. 3. Fig. 6 is an enlarged section of the long staple-roll, the

adjustable seed-resistance member, the stripplate D, which projects beyond the end of the @p'er-knifeQ, and the vibrating feeder and'sepa- .ratorr Fig. '7- is a transverse section of the wool-burring roll and doffer-knife, the resistance member, and the combined vibrator and jseparator. ,of the wool doffer-knife, andFig. 9 is a Cross- Section of a short-staple-operating roll.

gins known as rollert gins, primarily has Fig. 8 is a detail view of a portion Referring to the accompanying drawings by letter, A A indicate the end frames which are connected and braced by the longitudinal nally from end to end of the machine, the peculia'r construction of the discharge mouth of 5 which also formsan important feature of this invention.

Referriugnow more particularly to Fig. 5, it will be noticed such hopper has its bottom c, inclined downward from the rear to the front wall, and such bottom terminates at a point short of the front wall 0', from which point a short vertical portion is provided which forms. the rear wall 0 of a longitudinal chamber a, for a purpose presently described. The front wall 0' also stops short of the lower end of the hopper, whereby to form a discharge'mouth cf, the bottom of which is formed by the lower end d of a sheet metal" bottom 0, and entirely covers such bottom as shown.

E indicates a cut off or slide or gate, which extends entirely across the hopper at the front, and is heldto slide in inwardly and downwardly inclined grooves e e in the ends 0 ofsuch hopper forming as it were a front inclined bottom member for guiding the cotton bearings g g adjustably held on the end frames man arm J, to which is imparted an oscillating motion as such roller rotates, and which operates the feed devices, the construction of which is most clearly shown in Figs. 2 and 5. By referring now to such figures, it will be noticed, within the hopper body under the adjusting slide E, is journaled a toothed cylinder K, the shaft 10, of which projects at one end, and carries a ratchet wheel with which is adapted to engage a pawl Z pivoted on the upper end of an oscillating, lever L loosely journaled on the said shaft 1c, and formed with a long pendent arm Z, slotted as at Z with which is adjustably connected the outer end of the pitman J.

By providing feed devices arranged as described, a continuous intermittent feed will be given the cotton as it passes through the throat toward the mouth 0 the throwor feed length of which can be increased or decreased, as the quality of the staple may require, by adjusting the outer end of the pitman arm to or from the fulcrum of the ratchet lever L.

The roller G, when the machine is used for treating long staple cotton, has its peripheral face formed of brass, fluted longitudinally as shown. Such facing I have found to be most effective in the desired operation and wearing much longer, than when formed of wood orother material. When however short staple cotton is being treated I prefer to form such face smooth and of a composition formed of lead and antimony, as such has been found most desirablefor such kind of cotton in the practical use of the machine.

It should be stated, that I have found in practice that a more uniform, rapid and effective result is obtainable, by providing a vertically reciprocating stripper blade, and furthermore by constructing such device in the manner shown and presently described, I can utilize the same devices which reciprocate such blade for operating a vibrating mechanism, the construction and arrangement of which forms one of the essential features of my invention.

By reference to Figs. 1 and 3, it will be noticed, guide lugs a a, are formed on the outer face of the side frames A A, in which are held, for vertical reciprocation, guide rods M M, thelower ends of which are pivotally joined to cross heads N N, which have each a pair of pendent rods 0 0, connected at their lower ends with cross heads N N, in which are journaled the crank members 10 19 of crank disks P P, mounted on a longitudinal shaft P, having a drive gear Q, which meshes with a larger drive gear R, on a parallelly disposed shaft R, provided at one end with a drive pulley R of a small diameter, which is driven by the belt T, which passes over the large drive pulley H, before referred to.

The upper ends of the rods M are projected above the bed face of the members A A, and are threaded as at m m, and on such ends are fitted the apertured cars a u, of castings U U, to which is secured the stripper blade V, as most clearly shown in Fig. l, and such castings are capable of vertical adjustment on the rods M, they being held to their adjusted positions by the nuts u M2, the purpose of such adjustment being hereinafter set forth.

The blade V which consists of a longitudinal member having a flat shear face, and having a lower cutting edge, is held to reciprocate over the face of the roller Gr, between it and the discharge mouth of the hopper, and its cutting edge is adapted to pass in front of the stationary knife or seed resistance member. This seed resistance member, consists of a longitudinal bar W, held underthe roller G, and inclined downwardly, the lower end of which at its outer edges has apertured ears or enlargements w w, which receive the inner ends of stud bolts to having angular flanges w and formed with their outer ends threaded as at ta to receive the securing nuts 10 It will be noticed by reference to Fig. 6 that the bar W extends up under the front face of the roll and has a seat or socket portion w, in which is secured the stationary knife blade Z, the outer edge of which is vertical while its upper face is concaved on an arc eccentric to the roll G. It should be stated, the object in pivotally connecting the bar W to the frame, is to allow the said bar to be adjusted up against the roller as the blade wears; and to keep its stripping edge substantially at the same point on the said roller, I arrange the stud bolts to travel in segmental slots a. in the main frame, curved on an arc with the axis of the roller as a center, and to facilitate the ready detaching of the bar W when desired, I form the base of such slots with circular enlargements a of a diameter sufficient to permit of the withdrawal of the stud bolts from the ears w to.

To form a support for the upper end of the bar W, and also as a means for regulating the pressure of the stationary knife on the roller, a longitudinal rest bar A extends under such bar W, and has a series of adjusting screws B which engage the under face of such bar W as shown, and to provide an upper rest or support for the lint board or incline 0 such bar W, has a series of lugs or cars D on which the upper end of such board rests, the lower end resting on the floor. See Fig. 1.

At the opposite ends of the reciprocating stripper blade V are stud bolts '0 v, on which are secured for independent vertical adj ustment, pendent arms E to the lower ends of which is rigidly connected alongitudinal bar F on the front face of which are projecting fingers G which incline upward, as shown. such fingers, in practice being first formed of straight members, having their threaded ends fitted into the bar F after which they are bent up as shown, to guide thecotton toward the knife, as it is discharged thereon, as will presently be described.

It will be noticed by reference to Figs. 5 and 6 that the fingers project into the chamber 0", under the discharge mouth ofthe hopper, and form a combined agitator, receiver and separating means, as well as a feeder, for lifting the cotton to the stripper.

It will be manifestly understood, that as the cotton falls onto the agitator, and the same is reciprocated with the stripper, the cotton will be thoroughly agitated, and the dirt, as well as the seed separated therefrom passes through the fingers onto the seed discharging board H suitably supported on the main frame as shown.

In ginning machines of this class, as the cotton is stripped from the seed, some of it frequently drops back with the seed and discharges with it, causing a great waste. By providing an agitating or receiver frame in front of the stripper blade, such cotton, as it falls back, is caught up by such receiver and again carried up to the blade, thereby effectually preventing the loss of such cotton. By supporting such receiver or agitating means on the stripper blade as stated, the same can be adjusted independent of such blade, vertically to or from the stationary stripper blade, and by adjustably supporting the same the blade V can be adjusted to make its stroke extend over a greater or less face surface of the stationary blade, as the length of the staple may require, it being obvious, that in such adjustment, the agitator or receiver may be moved in unison with the blade V or adjusted independently thereof.

J 5 indicates a doffer roll or clearer, formed of a cylinder having longitudinal radially projected beaters formed preferably of leather, which are held to engage the rear face of the roller G, such dolfer roll being in practice geared with and driven from the main drive shaft in any ordinary manner. This roll may however be dispensed with, when the cotton is in a dry condition, it being found useful only when the cotton is wet and inclined to adhere to the roll G. So far as described, it will be noticed that by my invention, I provide means whereby the feed of the cotton, as well as the speed at which it is fed, is regulated and rendered uniform, such cotton thoroughly agitated to be freed from dirt, before it reaches the strippers, and automatically and continuously carried by a reciprocating motion to the said strippers, at the same time that it is freed from the seed. Furthermore, by constructing and arranging the stripping and separating devices as shown and described, I am enabled to run themachine at a very high speed; without the undue jarring, usually incident to machines of this class,

. and thereby greatly increase the operating capacity, without danger of injury to the fiber of the staple.

the roll G is removed, and a similar roll covered with hard rubber, to form substantially a yielding bearing to prevent injury to the fiber is used, and instead of employing a strip ping knife V, with a flat shearing face, a blade V having a series of vertically disposed grooves o 0 as illustrated in Fig. 7, is employed, which forms a doffer or comb like stripper. The feeding and agitating operation is the same as before, as also the reciprocal motion of the blade V In this case however such blade has a combing action which removes the burrs out of the wool instead of the pulling or stripping action of the cotton blade V.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. An improved roller cotton gin, comprising a feed hopper, a longitudinal chamber 0 at thedischarge end thereof, a roller held parallel to such chamber, a bed knife having a vertical shear face disposed with its cutting edge at the front face of such roller, a Vertically reciprocating stripper held above the bed knife, having 'a pendent arm provided with projecting fingers held at a point below the cutting edge of the bed knife and projected into the longitudinal chambercc said fingers being adapted to receive the cotton from such hopper and to lift it upward toward the cutter or stripper blades as the stripper is moved upward, and means for reciprocating such stripper, all arranged substantially as shown and for the purposes described.

2. In a roller cotton gin, the combination with the main frame, the roller G, the upper vertically reciprocating knife V and means for feeding the material to the roller, of a bed or stationary knife having a vertical shear face, means for adjusting the lower end in an arc concentric with the axis of the roller, and adjustable supports held to engage the lower face of the upper end of the said bed knife, all arranged substantially as shown and described.

3. In a roller cotton gin essentially as described, the combination with the roller G, the fixed bed plateW held under the roller and the bed knife Z having a vertical shear face disposed at the receiving point of the roller, of the vertically reciprocating stripper and blade V, held above the bed knife and adapted to separate the seed from the lint on a down thrust, whereby to force such seed downward and receiving separating and agitating means connected to such blade, and movable vertically with it, whereby to carry the lin'ty seed up toward the stripping point of the roller as such upper knife moves upward, as set forth.

SAMUEL L. JOHNSTON. lVitnesses:

SOLON C. KEMON, FRED G. DIETERICH. 

